Geological Timeline

In which time period are we currently living?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Tags

NGSS.MS-ESS1-4

Jellyfish are one of the oldest species on Earth. In what time period did they first appear?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Tags

NGSS.MS-LS4-1

Dinosaurs, small mammals, and birds are found in this time period.

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

This chronological time chart is broken into different time chunks; the largest being the Eon, then Era, Period, and Epoch.

• Timeline

• Earth's Calendar

• Geological time scale

• Time chart

Approximately how old is the Earth?

• 4.6 billion years old

• 4.6 million years old

• 5 billion years old

• 5 million years old

Tags

NGSS.MS-ESS1-4

Preserved remains of plant and animals from the remote past are called _______________.

• Rocks

• Epoch

• Strata

• Fossils

The end of life for a group of organisms, usually a species, is called a(n) ________________.

• Extinction

• Retirement

• Endangerment

• Catastrophe

Tags

NGSS.MS-LS4-1

What determines when an era or period ends?

• Climate Change

• New Species

• Mass Extinction

• Rise in temperatures

During the Mesozoic Era, we find the following periods:

• Cretaceous, Permian, Cambrian

• Silurian, Cambrian, Devonian

• Triassic, Jurassic, Cretaceous

• Triassic, Jurassic, Devonian

Which era was the longest?

• Paleozoic

• Precambrian

• Mesozoic

• Cenozoic